| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coaster which has a positive charm and fancy image not by material or passive colors but by emitting of sharp light, and has a constitution in which the drink can be transmittedly illuminated. SOLUTION: The coaster, which has a transparent part at least on the upper face, has a base where a battery generating energy to emit light, a light emitting circuit, a switching component and at least one LED are kept, and the LED is set inside the transparent part. And, the light of the LED is white. A control circuit is fixed to control the light emitting circuit, and the control circuit is attached with a modulation method of light emitting to modulate the interval or the strength of light emitting of the LED temporally.</p> |
